Should one always use desiccated ammonium sulphate for salt precipitation?

Some of the protocols have mentioned, heat the ammonium sulphate at 120 degree C overnight and grind it to a fine powder before use. But most of the protocols do not mention such step. Is it...

07 August 2018 6,861 0 View

How to prepare soil extract for using it in a medium ?

I have to isolate actinomycetes from soil, for which soil extract agar is required..It would helpful if a protocol is available to prepare soil extract. Not for soil extract agar

07 August 2016 6,723 3 View

I want to whether SCIENCE journal has publication charges or not ?

No info regarding the fees have been mentioned in the science page.

06 July 2016 8,771 1 View

In papers for isolating endophytic actinomycetes antibiotics are used .. I need to know the exact concentration to be used ?

06 July 2016 886 6 View

Can Antifungal and Antibacterial agents / Antibiotics be added in the media before sterilization or after the media is sterilized ?

06 July 2016 1,916 2 View

What is the exact difference between plant meristem and plant stem cells ?

02 March 2016 4,750 3 View

Can anyone suggest how to prepare CM Cellulose for gel filtration chromatography ?

01 January 1970 7,747 5 View

Is there a classification scheme for rock cavities or caverns with respect to their size and shape?

The range of forms and sizes of cavities in rock is very big. Is there a classification scheme for rock cavities regarding their size and shape?

02 March 2021 4,511 3 View

How to classify strictly upper triangular matrices by similarity?

Let F be a field. Consider U, the set of n times n strictly upper triangular matrices in F. For X, Y in U, we call them similar if there exists some S, which is non-degenerate and upper...

01 March 2021 2,957 8 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

How to find a correlation between coordinates in a curvilinear coordinate system?

Hello. I have a skewed elliptical coordinate system (I use alternative elliptical coordinates). And I need to determine connections between coordinates in order to fetch a covariance matrix of...

28 February 2021 364 3 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

What are the methods used for CNT..?

Respected Professor's i hope you are doing well and happy. i need some information about carbon Nanotubes. before blending the CNT with the matrix the CNT has been introducing in some treatments....

24 February 2021 5,383 5 View

How can I generate random samples from Bingham distribution in R? How can I construct those symmetric matrices?

in the function rbingham(n,A) in R software how can I construct that A (symmetric) matrix?

24 February 2021 3,528 3 View

How does the injection volume impact LLOQ and ULOQ in regression analysis (LC-MSMS)?

Hello, I have run into an issue that has sparkled a debate at work: is the LLOQ/ULOQ impacted by injection volume under the following circumstances: 1) Same dilution factor of all samples 2)...

23 February 2021 9,159 3 View